30
Technical Manual
D3141
(RX600
S6)
Features
©
c
o
gn
ita
s. G
ese
lls
ch
ft fü
r T
ech
ni
k-
D
oku
m
en
ta
tio
n
m
bH
2
01
1
Pf
a
d: C
:\P
ro
g
ra
m
m
e
\F
C
T
\ti
m
_a
pp
\ti
m
_l
oca
l\w
or
k\PI
C
H
O
L\
O
B
J_
D
O
KU
-1
2
00
2-
00
1.
fm
Mirroring mode
In mirroring mode, all data are copied within the main memory. Therefore, only
50% of the total memory is available for the operating system.
Two types of mirroring modes are available:
– Intrasocket Mirroring
Memory will be mirrored from one Mbox to the other Mbox within the
same
CPU (see
figure 11 on page 31
). Intrasocket Mirroring is possible for all CPU
configurations (2, 3, or 4).
I
This mode requires 2 memory boards per CPU (2, 4, 6, or 8 total). All
DIMMs must be identical (same capacity and technology)!
– Intersocket Mirroring
Memory will be mirrored from one Mbox to an Mbox on
another
CPU (home
agent to mirror agent, (see
figure 13 on page 33
). Intersocket mirroring is
only possible with 4 CPUs, not with 2 or 3 CPUs.
I
This mode requires 2 memory boards per CPU (8 total). All DIMMs
must be identical (same capacity and technology)!